LEMON Manuals: Even more car manuals for everyone
Home >> Honda >> 2000 >> CR-V SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 9 (Engine Controls - Self-Diagnostics - 3.2L & 3.5L) >> Diagnostic Trouble Code Identification >> DTC P1514: TPS-MAF Correlation >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2000 Isuzu VehiCROSS, 2000 Isuzu Trooper, 2000 Isuzu Rodeo, 2000 Isuzu Amigo, and 2000 Honda Passport. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform On-Board Diagnostic II (OBD-II) System Check. See ON-BOARD DIAGNOSTIC II (OBD-II) SYSTEM CHECK in SELF-DIAGNOSTICS - INTRODUCTION article. After performing OBD-II system check, go to next step.
  2. Perform Electric Throttle Control (ETC) System Check. See ELECTRIC THROTTLE CONTROL (ETC) SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM. Go to next step.
  3. Turn ignition on. Using scan tool, review and record FAILURE RECORDS data. Operate vehicle within FAILURE RECORDS conditions noted. Monitor DTC information for DTC P1514. If scan tool indicates that DTC P1514 FAILED THIS IGNITION, go to next step. If scan tool display is not as specified, go to DIAGNOSTIC AIDS .
  4. Start engine. While engine is idling, monitor scan tool MAF FREQUENCY. If scan tool display is less than 6-10 g/s, go to next step. If scan tool display is 6-10 g/s or more, go to step  8.
  5. Turn ignition off. Disconnect MAF sensor. Turn ignition on. If scan tool MAF FREQUENCY shows 0 g/s, go to next step. If scan tool display is not as specified, go to step  7.
  6. Replace MAF sensor. Retest system. If problem is still present, go to step  9.
  7. Check for incorrect MAF sensor harness routing near high voltage components such as solenoids, relays or electrical motors. Repair as necessary. If no problem was found, go to next step.
  8. With engine at idle, monitor scan tool MAF FREQUENCY. Under load, snap throttle open quickly to wide open throttle and note MAF FREQUENCY. If scan tool display reads 6-10 g/s, go back to step  6. If scan tool display is not as specified, go to next step.
  9. Turn ignition on, engine off. Observe MAP sensor reading on scan tool. If MAP sensor value is less than 65 kPa, go to next step. If scan tool display is 65 kPa or more, go to step  13.
  10. Disconnect MAP sensor. If scan tool display is less than 104 kPa, go to step  12. If scan tool display is not as specified, go to next step.
  11. Check for an open or short on MAP sensor ground circuit between PCM and MAP sensor. Repair as necessary. If no problem was found, go to step  13.
  12. Replace MAP sensor. Retest system.
  13. Use scan tool to monitor TPS1 and TPS2 throttle angles. At closed throttle, TPS1 value should be between 8-10 percent and TPS2 value should be between 90-92 percent. TPS values should change smoothly as throttle valve is opened all the way. At WOT, TPS1 value should be between 90-92 percent, and TPS2 value should be between 8-10 percent. If TPS operation is as specified, go to DIAGNOSTIC AIDS . If TPS operation is not as specified, go to next step.
  14. Disconnect TPS1 and TPS2. Observe scan tool values for both sensors. If both values are zero, go to next step. If scan tool display is not as specified, go to step  16.
  15. Connect test light between TPS harness connector 5-volt reference circuit and each TPS signal circuit. Scan tool display should read 5 volts as each sensor signal circuit is probed. If scan tool display is as specified, go to step  18. If scan tool display is not as specified, go to next step.
  16. Check affected TPS for short to voltage on signal circuit, high resistance on ground circuit or poor ground circuit connection between PCM and TPS. Repair as necessary. If no problem was found, go to step  19.
  17. Check affected TPS for poor connection or high resistance on 5-volt reference circuit between PCM and TPS. Repair as necessary. If no problem was found, go to next step.
  18. Replace affected TPS. Retest system.
  19. Replace and reprogram PCM. See PROGRAMMING .
scientia non olet · About LEMON Manuals